{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0x4fea1671aab13d907c99286435d2fe3dd94e1f195e821ef23218fd68e63c5421",
    "signature": "0x831bcf5d00b255aa1740cfe7354c8a80b5c2109a4800386d4916771282fc657f109e96f503a3c08ebc7dfed7639032f67e14641c542f8874eebfbd2816ff50cd1c",
    "signer": "0xCFd4CD9f0a40a07EE804cbc3e3Fc64b58785B7C1",
    "userId": "630411632"
  }
}